Jar-closure.



J. E. BARRANGER.

JAR CLOSURE.

APPLICATION FILED OCT. 13, 1908.

Patented May 18, 1909.

' in Philadelphia,

UNITED sni rns PATENT ornrcn JOSEPH E. BARRANGER, OF PHILADELPHIA,PENNSYLVANIA.

JAR-CLOSURE.

Specification of Letters Patent. Patented May 18, 190?.

I Application filed October 13, 1908. Serial No. 457,547.

To all whom it may concerns latter resting upon the Be it known that I,JOSEPH E. BARRAN- l GER, a citizen of th States, residing I cal facehearing upon the verticalwall2 above in- I said beveled seat.- When thecap 9 is first I applied to the jar, therefore, the convex inner I faceof its ring member 10 bears upon the gasket at the junction of its outervertical and upper beveled faces and when the downward pressure of theair is exerted upon the cap, the resultant of thepressure of the saidvented certain Improvements in Jar-Closures, of which the following is aspecification. J

My invention relates to that particular class of closures for bottles,jars, tumblers, or like receptacles, (hereinafter, for convenience,termed a jar) which are known as vacuum" closures,.and in which the capor cover is held in place upon the jar by the pressure of air thereupon,a vacuum or partial vacuum having been established in the in thedirection of the arrows m, Fig. 1, and the uniform .compression andsymmetrical expansion of the gasket is effected, the shoulder 4overcoming any tendency of the cap to ar. force the gasket downwardlyfrom its seat on The object of my invention is to so conthe jar, or totwist or distort it in such a way struct a closure of this class thatwhen the l as to destroy its symmetrical cross section cap or cover issubjected to the; pressure of and thus cause leakage and thereduction inthe air, and is forced downwardly thereby it the thickness of the upperand lower en'ds'of will exert a properly applied compressing the gasketpermitting of the forcing of the force upon the seal same intothecontract'ed spaces between'the ing asket used in connection therewithand wi have no; tendency upper and lower vertical ,walls of the jar andt e corresponding portions of the cap withto distort said gasket ordisplace it from its seat'below the mouth of the jar. out oflering undueresistance to the down- In the accompanying drawing-Figure 1 Wardmovement of the latter. is a vertical sectional view, on a much en- IContact of the lower edge of the vertical flange 12 of the rin member oflarged scale,"of the upper portion of a jar the horizontal sho'u der 6on the constructed and provided with a sealing gasket and cover inaccordance with my inarrest the descent of the cap when the ropervention, the parts occupying the positions degree of compression hasbeen exerts upon the sealing gasket, and to level said cap, and pressureof thesame upon assumed by them before the vacuum is i established inthe jar and the 'cover is siibi insure a uniform pressure of the air,and Fig. 2 all portions of the gasket.

view illustratin the relation of I claim zthe arts to one annther a erthe vacuum 1. Ajar rovided externally has een established, the coversub'ected to. mou l1 witli a vertical wall having, at its pressure andthe sealing o the jarbase, a beveled seat terminating in aprojecteflected. ing shoulder, and a vertical wall below said shoulder,in combination with a sealing asket of rhomboidal cross section which, wen appliedto the jar, presents tapering upper .and lower ends, thelatter resting on the projecting shoulder, and a cap havin a ring memberwith tapering internal face or hearing on the outer face of the sealinggasket, and portions above and below said face presentmg, when the capis depressed, con- .tracted spaces between them and the vertical wallsof the jar. v

2. A jar rovided externally and below its 1 mouth wit a vertical wallhaving, at its base, a beveled'seat terminating ing shoulder, and ashoulder'terminating in ,a lower .projecting shoulder, in combinationwith a sealing gasjar serves to In the drawing, 1 represents part of thebody of the jar which has, on the outside of thesame, immediately belowthe mouth, a vertical wall 2, terminatin at its base in a beveled seat3, and at the base of the latter is a horizontal shoulder 4, andoutwardly beyond the latter another'vertic'al wall 5, at w ose base is asecond horizontal shoulder 6. In connection with the jar thusconstructed employ. a sealing gasket 7 of rhomboidal cross section and'acap 9 having an outer ring member 10 which presents an internaltaperingand preferably convex face 11 and a vertical ibase flange 12.

' The rhomboidal seali g gasket is applied he jar so as to present twovertica faces and two outwardly and downwardly flaring convex face uponthe gasket is substantially and below its in a projectvertical wallbelow said" the cap with ket of rhomboidal cross section which, when deron the latter serving by contact with the applied to the jar, resentstapering upper lower edge of the cap to limit the descent of and lowerends, the atter resting on the prothe same.

jecting shoulder at the base of the seat, and a In testimony whereof Ihave signed my 5 cap having a ring member with tapering inname to thisspecification, in the presence of l ternal face for bearing on the outerface of two subscribing witnesses. v the sealing gasket, and portionsabove and JOSEPH E. BARRANGER. below said face forming, when the cap isde- Witnesses: pressed, contracted spaces between them and HAMILTON D.'lununn,

10 the vertical walls of the jar, the lower shoul- KATE A. BEADLE.

